On Sat, 2014-05-24 at 09:00 -0400, Sam Varshavchik wrote: > [email protected] writes: > > > With the recent DMARC implementation from AOL and Yahoo I have a very > > broken mailing list. Is there any way using MLM to rewrite the From: line > > to the list address and the Reply-To: line to the actual sender? > > Reply-Tos should go back to the mailing list, not the sender.
This isn't an appropriate choice for most lists, which are configured for reply-to-sender. Munging the Reply-To header for this purpose is a broken way of dealing with the problem. > In the .courier-list file you could put something that adds or replaces the > Reply-To: header. Then, use the headerdel and headeradd configuration > settings, as documented in the couriermlm man page, to remove the existing > From: header, and replace it with a new one. > > But, after doing that, you'll probably discover that it doesn't work, for > some reason, or something else is broken. Sam, would you please disambiguate this. What else would break? Why would it not work. > The correct fix is to tell your Yahoo and AOL subscribers to switch > providers. Telling Yahoo and AOL subscribers to change ESPs is NOT a solution, nor is it an option for many working mailing lists. Actually getting Yahoo and AOL, and other ESPs which honor it, to fix their broken DMARC p=reject implementation _would_ be a solution. The only appropriate quick-fix is to put all aol.com and yahoo.com subscribers on moderation and disallow posts from these users to a list, making their subscriptions read-only. I don't know if this is possible in MLM or not. I know that it is in Mailman, but Mailman 2.1.18-1 has more creative fixes for the DMARC fiasco. The DMARC problem implies information loss, contrary to the spirit and in some cases the letter of applicable mail RFCs. When and how this information loss occurs is up to ML software designers and list administrators. -- Lindsay Haisley | "Never expect the people who caused a problem FMP Computer Services | to solve it." - Albert Einstein 512-259-1190 | http://www.fmp.com | ------------------------------------------------------------------------------ "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available Simple to use. Nothing to install. Get started now for free." http://p.sf.net/sfu/SauceLabs _______________________________________________ courier-users mailing list [email protected] Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
